CN106342094B - A kind of high-temperature fusant is processed the process of eliminating K441 alloy fire check - Google Patents
A kind of high-temperature fusant is processed the process of eliminating K441 alloy fire checkInfo
- Publication number
- CN106342094B CN106342094B CN200710081735.1A CN200710081735A CN106342094B CN 106342094 B CN106342094 B CN 106342094B CN 200710081735 A CN200710081735 A CN 200710081735A CN 106342094 B CN106342094 B CN 106342094B
- Authority
- CN
- China
- Prior art keywords
- core
- cast
- shell
- alloy
- temperature
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
High-temperature fusant is processed a process of eliminating K441 alloy fire check, it is characterized in that:
Description
Technical field
The present invention relates to machinery and casting field, provide especially a kind of high-temperature fusant to process and eliminated K441The process of alloy fire check.
Background technology
High-temperature fusant Overheating Treatment technique is that alloy melt is heated to above to aluminium alloy phase line temperatureUnder the critical-temperature of (200～400) DEG C, be incubated, be then cooled to alloy pouring temperature to start again to solidify.Chemical composition and the phase constituent of alloy depended in critical-temperature, near the property of alloy melt critical-temperatureMatter can be undergone mutation, thereby affects solidified structure and the mechanical property of alloy, and Chinese scholars is for heightTemperature melt treatment problem has been carried out a large amount of research work, mainly concentrates on the binary such as Al-Si and Ga-InThe melt structure of alloy and the impact of alloy thereof, for nickel base superalloy, mainly studied high temperatureThe impact of melt treatment alloy tissue and performance. Russia to Ж С 6y-В И, Ж С 6 К-В И,The nickel-base cast superalloy such as Ж С 26-В И, Ж С 6 Φ-В И are in melt treatment technical fieldAll there is fruitful research; As Ж С 6y-В И alloy is incubated to 3 minutes at 1620 DEG C, thenDrop to (1550～1580) DEG C cast blade, can greatly reduce the hot cracking tendency of this alloy, greatlyGround has improved the essence casting qualification rate of blade.
Research was done in the melt structure of domestic scholars on Al-Cu bianry alloy and the impact of alloy thereof,Some scientific research institutions adopt high-temperature fusant to process the structure to some monocrystal nickel-base cast superalloy meltsDo research, also once had the research to the cast superalloy such as K424, K465, but these researchsBe confined to laboratory character and scale. One boat leads without surplus essence casting high pressure according to certain type machine dawnThe feature of the structure of blade and K441 alloying component, through a large amount of metallurgical technology tests, has found outA whole set of adopts the process of high-temperature fusant processing, eliminates K441 alloy fire check, improves certain type machineWithout surplus high pressure guide vane essence casting qualification rate, receive good economic effect.
Summary of the invention
The object of the invention is to eliminate K441 alloy fire check provides a kind of high-temperature fusant to process eliminationThe process of K441 alloy fire check.
The invention provides a kind of high-temperature fusant and process the process of eliminating K441 alloy fire check,It is characterized in that: the chemical composition percentage of K441 alloy consists of:
Main auxiliary material are:
Core material: porzite powder;
Mould material: F2844B moulding wax material;
Shell: 100#, 80#, 60# schmigel and 24# gangue
Binding agent: Ludox or ethyl silicate hydrolyzate
The process that high-temperature fusant is processed elimination K441 alloy fire check includes following steps and complies withInferior execution: core preparation process, locating step, molding step, shell step processed, cast are located in advanceReason step, cast and alloy high-temp melt treatment step.
Described high-temperature fusant is processed the process of eliminating K441 alloy fire check, cast and alloy high-tempMelt treatment step is: send peak power fusing, after becoming civilized, refining temperature risen to 1600～1750 DEG C,High-temperature fusant processing time 5～7min; 1480～1500 DEG C of pouring temperatures, the duration of pouring 3～5S; WaterNote latter 5 minutes vacuum breakers, sandbox is taken out cooling, shake out shelling after 8 hours.
Described high-temperature fusant is processed the process of eliminating K441 alloy fire check, cast pre-treatment stepFor: pouring type is that pattern of fever cast is back-up sand cast, and back-up sand granularity is 24# gangue, requires without dust;Vanning and the preheating of shell divide following steps:
1. shell enter first to use before stove heating insulation quilt at the end face of large jam plate together with cross gate, use200 × 100 × 20mm insulation quilt is wrapped, then uses the iron wire of Φ (0.3～0.5) mm to bind;
2. first pack the back-up sand of (20～30) mm in the bottom of sandbox, repaving thickness is 20mm'sInsulation quilt; When shell packs sandbox into, first obturage and water rim of a cup and carry out again back-up sand with double-layer aluminum-foil, require shellAll around mold thickness is even, and back-up sand is (30～40) mm apart from the height of cast gate rim of a cup, takes away aluminiumPaper tinsel, cover cast gate bowl cover, pack lightly holding furnace power transmission into;
Shell preheat temperature: 980 DEG C～1010 DEG C, be greater than 4 hours; Shell enters stove cast: by sandboxPack single chamber vacuum furnace into, the time is from entering stove to pouring as (25～30) min; Adopt alumina crucibleRemelted alloy cast, casting equipment adopts vaccum sensitive stove.
Described high-temperature fusant is processed the process of eliminating K441 alloy fire check, and molding step is: systemMold materials adopts the U.S. to produce F28-44B moulding wax material, 73～77 DEG C of molding die mould temperature, casting pressure0.20～0.35MPa, mold clamping force 6-8MPa, dwell time 40～60s.
Described high-temperature fusant is processed the process of eliminating K441 alloy fire check, it is characterized in that: workSkill positioning step, locating comprises location, ceramic core and the ceramic shell of core and profile mouldLocation; The wherein location of core and profile mould, adopts core blade 1 main location, cope print 2,The principle of lower core print 3, exhaust side window mouth 4 auxiliary positioning; The location of ceramic core and ceramic shell, adoptsDirectly locate with shell with the cope print 2 of core, under core, 5 white stone is brushed on core print 3, core exhaust limitWax is as free end.
Core preparation process and shell step processed adopt conventional method.
The location of core and profile mould, adopts the main location of core blade, and core print, exhaust side window mouth are auxiliaryHelp the principle of location, the superiority of this kind of locating is: blade, as main location, (refers to after matched mouldsCrust mould) as long as core does not rupture, illustrate that the deflection of core is within the scope of tolerance,And can ensure better the wall thickness of blade wall thickness dimension to be well controlled in X, Y-direction;And core print can make blade be well controlled and ensure at the wall thickness of blade Z direction as auxiliary positioning,Can also control well the thickness of dividing plate simultaneously.
The location of ceramic core and ceramic shell, adopts cope print and the shell of core directly to locate, typeUnder core, the paraffin wax white of core print, core exhaust limit brush is as free end, and its superiority is: in guarantee typeCore, shell have enough gaps while there are differences because of expanded by heating coefficient or cooling shrinkage factor; Meanwhile,Cope print when cast (large jam plate), avoids forming suspended core down, also can avoid well blade exhaustSide window mouth produces metal " white line " because of the fracture of core.
By the carbon content control of K441 alloy in 0.02～0.03% scope, coordinate stokehold 1600～1750 DEG C of high-temperature fusants are processed 5～7 minutes, then drop to the technique of 1480～1500 DEG C of cast blades,High pressure guide vane can reach (65～85) % without surplus essence casting qualification rate.
High-temperature fusant treatment process alloy composition has different impacts, table 1 is K441 alloy through 1620,1650, the chemical composition after 1700 DEG C of different temperatures melt treatment:
The chemical composition of table 1 K441 alloy after different temperatures melt treatment
From table 1, alloy is through 1620,1650,1700 DEG C of different temperatures melt treatment of 5 minutesAfter, compared with same stove foundry alloy (06BF28-1), C content does not almost change, and high temperature melting is describedWhen body there is not scaling loss in C element; Host element Cr, W have slight scaling loss, but still in technical conditionsIn claimed range, Mo, B, Zr, P almost do not change; Al is by the trend increasing, this with useAl2O3 crucible cast blade is relevant, but according in acceptability limit; And S content is with melt treatment temperatureRising, have a declining tendency, be followed successively by 11ppm, 8ppm and 5ppm, the reduction of S content offsetsRemove K441 alloy fire check favourable.
The impact of high-temperature fusant treatment process alloy performance, table 2 for K441 alloy is carried out to 1620,1650,1700 DEG C of high-temperature fusant mechanical properties after treatment:
The mechanical property of table 2 K441 alloy before and after melt treatment
From table 2, alloy after the high-temperature fusant of different temperatures is processed, its room temperature, 950 DEG CTensile property all has raising in various degree, mechanical properties with the alloy phase ratio without melt treatmentImprove (175～225) MPa, the hot strength of 950 DEG C improves (100～110) MPa, and plasticity is equalHave raising in various degree, temperature-room type plasticity improves 3～4 times, maintains regime values creep rupture lifeLevel on the upper side, reaches three times of 18 hours creep rupture lives of 980 DEG C/83MPa of technical conditions.
The mechanical property of core, the room temperature of 1 core, 2 cores and 1350 DEG C of bending strength σ bb are shown inTable 3:
The room temperature of table 3 core and high-temperature bending strength
From Fig. 2 Fig. 3 relatively can find out, high-temperature fusant process after K441 As-cast Microstructure moreAdd evenly, crystal boundary and matrix precipitate obviously reduce; From Fig. 4 Fig. 5 relatively can find out, heightAfter temperature melt treatment, the arborescent structure of K441 alloy is more tiny, and without the dendrite group of high-temperature fusant processingKnit thicker, this be also alloy through high-temperature fusant mechanical property after treatment by improved one mainReason; From Fig. 6 Fig. 7 relatively can find out, after high-temperature fusant is processed, the γ ' of alloy is mutually moreAdd tiny, pattern more square whole, more disperse distributes.
This advantage: it is more even that high-temperature fusant is processed rear K441 As-cast Microstructure, crystal boundary and intracrystallinePrecipitated phase obviously reduces, and the arborescent structure that high-temperature fusant is processed rear K441 alloy is more tiny.
Brief description of the drawings
Fig. 1 is that K441 alloy is poured into a mould without surplus high pressure guide vane process curve;
Fig. 2 is the as-cast structure of alloy structure before melt treatment;
Fig. 3 is the as-cast structure of alloy structure after melt treatment;
Fig. 4 is the arborescent structure of alloy before melt treatment;
Fig. 5 is the arborescent structure of alloy after melt treatment;
Fig. 6 is the tissue of alloy γ ' hardening constituent before melt treatment;
Fig. 7 is the tissue of alloy γ ' hardening constituent after melt treatment;
Fig. 8 is core figure.
Detailed description of the invention
Embodiment 1
The chemical composition percentage of the present embodiment K441 alloy consists of:
Main auxiliary material are:
Core material: porzite powder;
Mould material: F28-44B moulding wax material;
Shell: 100#, 80#, 60# schmigel and 24# gangue
Binding agent: Ludox or ethyl silicate hydrolyzate
The process that high-temperature fusant is processed elimination K441 alloy fire check includes following steps and complies withInferior execution: core preparation process, locating step, molding step, shell step processed, cast are located in advanceReason step, cast and alloy high-temp melt treatment step.
Described in the present embodiment, high-temperature fusant is processed the process of eliminating K441 alloy fire check, and cast is pre-Treatment step, pouring type is that pattern of fever cast is back-up sand cast, back-up sand granularity is 24# gangue, requirementWithout dust; Vanning and the preheating of shell divide following steps:
1. shell enter first to use before stove heating insulation quilt at the end face of large jam plate together with cross gate, use200 × 100 × 20mm insulation quilt is wrapped, then uses the iron wire of Φ (0.3～0.5) mm to bind;
2. first pack the back-up sand of (20～30) mm in the bottom of sandbox, repaving thickness is 20mm'sInsulation quilt; When shell packs sandbox into, first obturage and water rim of a cup and carry out again back-up sand with double-layer aluminum-foil, require shellAll around mold thickness is even, and back-up sand is (30～40) mm apart from the height of cast gate rim of a cup, takes away aluminiumPaper tinsel, cover cast gate bowl cover, pack lightly holding furnace power transmission into;
Shell preheat temperature: 980 DEG C～1010 DEG C, be greater than 4 hours; Shell enters stove cast: by sandboxPack single chamber vacuum furnace into, the time is from entering stove to pouring as (25～30) min; Adopt alumina crucibleRemelted alloy cast, casting equipment adopts vaccum sensitive stove.
Described in the present embodiment, high-temperature fusant is processed the process of eliminating K441 alloy fire check, molding stepSuddenly, pattern-making material adopts the U.S. to produce F28-44B moulding wax material, 73～77 DEG C of molding die mould temperature, castingPressure 0.20～0.35MPa, mold clamping force 6-8MPa, dwell time 40～60s.
Described in the present embodiment, high-temperature fusant is processed the process of eliminating K441 alloy fire check, and technique is fixedPosition step, locating comprises the determining of location, ceramic core and ceramic shell of core and profile mouldPosition; The wherein location of core and profile mould, adopts core blade 1 main location, cope print 2, lower core3, the principle of exhaust side window mouth 4 auxiliary positioning; The location of ceramic core and ceramic shell, employing typeCope print 2 and the shell of core are directly located, and under core, the paraffin wax white of core print 3, core exhaust limit brush 5 is doneFor free end.
K441 alloy is carried out to 1620 DEG C of high-temperature fusant processing, and the time is 5min, and performance is as table 4.
The mechanical property of table 4 K441 alloy after melt treatment
From table 4, alloy after the high-temperature fusant of different temperatures is processed, its room temperature, 950 DEG CTensile property all has raising in various degree, mechanical properties with the alloy phase ratio without melt treatmentImprove (175～225) MPa, the hot strength of 950 DEG C improves (100～110) MPa, and plasticity is equalHave raising in various degree, temperature-room type plasticity improves 3～4 times, maintains regime values creep rupture lifeLevel on the upper side, reaches three times of 18 hours creep rupture lives of 980 DEG C/83MPa of technical conditions.
Embodiment 2
The chemical composition percentage of the present embodiment K441 alloy consists of:
Main auxiliary material are:
Core material: porzite powder;
Mould material: F28-44B moulding wax material;
Shell: 100#, 80#, 60# schmigel and 24# gangue
Binding agent: Ludox or ethyl silicate hydrolyzate
The process that high-temperature fusant is processed elimination K441 alloy fire check includes following steps and complies withInferior execution: core preparation process, locating step, molding step, shell step processed, cast are located in advanceReason step, cast and alloy high-temp melt treatment step.
Described in the present embodiment, high-temperature fusant is processed the process of eliminating K441 alloy fire check, and cast is pre-Treatment step, pouring type is that pattern of fever cast is back-up sand cast, back-up sand granularity is 24# gangue, requirementWithout dust; Vanning and the preheating of shell divide following steps:
1. shell enter first to use before stove heating insulation quilt at the end face of large jam plate together with cross gate, use200 × 100 × 20mm insulation quilt is wrapped, then uses the iron wire of Φ (0.3～0.5) mm to bind;
2. first pack the back-up sand of (20～30) mm in the bottom of sandbox, repaving thickness is 20mm'sInsulation quilt; When shell packs sandbox into, first obturage and water rim of a cup and carry out again back-up sand with double-layer aluminum-foil, require shellAll around mold thickness is even, and back-up sand is (30～40) mm apart from the height of cast gate rim of a cup, takes away aluminiumPaper tinsel, cover cast gate bowl cover, pack lightly holding furnace power transmission into;
Shell preheat temperature: 980 DEG C～1010 DEG C, be greater than 4 hours; Shell enters stove cast: by sandboxPack single chamber vacuum furnace into, the time is from entering stove to pouring as (25～30) min; Adopt alumina crucibleRemelted alloy cast, casting equipment adopts vaccum sensitive stove.
Described in the present embodiment, high-temperature fusant is processed the process of eliminating K441 alloy fire check, molding stepSuddenly, pattern-making material adopts the U.S. to produce F28-44B moulding wax material, 73～77 DEG C of molding die mould temperature, castingPressure 0.20～0.35MPa, mold clamping force 6-8MPa, dwell time 40～60s.
Described in the present embodiment, high-temperature fusant is processed the process of eliminating K441 alloy fire check, and technique is fixedPosition step, locating comprises the determining of location, ceramic core and ceramic shell of core and profile mouldPosition; The wherein location of core and profile mould, adopts core blade 1 main location, cope print 2, lower core3, the principle of exhaust side window mouth 4 auxiliary positioning; The location of ceramic core and ceramic shell, employing typeCope print 2 and the shell of core are directly located, and under core, the paraffin wax white of core print 3, core exhaust limit brush 5 is doneFor free end.
K441 alloy is carried out to 1650 DEG C of high-temperature fusant processing, and the time is 5min, and performance is as table 4.
From table 4, alloy after the high-temperature fusant of different temperatures is processed, its room temperature, 950 DEG CTensile property all has raising in various degree, mechanical properties with the alloy phase ratio without melt treatmentImprove (175～225) MPa, the hot strength of 950 DEG C improves (100～110) MPa, and plasticity is equalHave raising in various degree, temperature-room type plasticity improves 3～4 times, maintains regime values creep rupture lifeLevel on the upper side, reaches three times of 18 hours creep rupture lives of 980 DEG C/83MPa of technical conditions.
Embodiment 3
The chemical composition percentage of the present embodiment K441 alloy consists of:
Main auxiliary material are:
Core material: porzite powder;
Mould material: F28-44B moulding wax material;
Shell: 100#, 80#, 60# schmigel and 24# gangue
Binding agent: Ludox or ethyl silicate hydrolyzate
The process that high-temperature fusant is processed elimination K441 alloy fire check includes following steps and complies withInferior execution: core preparation process, locating step, molding step, shell step processed, cast are located in advanceReason step, cast and alloy high-temp melt treatment step.
Described in the present embodiment, high-temperature fusant is processed the process of eliminating K441 alloy fire check, and cast is pre-Treatment step, pouring type is that pattern of fever cast is back-up sand cast, back-up sand granularity is 24# gangue, requirementWithout dust; Vanning and the preheating of shell divide following steps:
1. shell enter first to use before stove heating insulation quilt at the end face of large jam plate together with cross gate, use200 × 100 × 20mm insulation quilt is wrapped, then uses the iron wire of Φ (0.3～0.5) mm to bind;
2. first pack the back-up sand of (20～30) mm in the bottom of sandbox, repaving thickness is 20mm'sInsulation quilt; When shell packs sandbox into, first obturage and water rim of a cup and carry out again back-up sand with double-layer aluminum-foil, require shellAll around mold thickness is even, and back-up sand is (30～40) mm apart from the height of cast gate rim of a cup, takes away aluminiumPaper tinsel, cover cast gate bowl cover, pack lightly holding furnace power transmission into;
Shell preheat temperature: 980 DEG C～1010 DEG C, be greater than 4 hours; Shell enters stove cast: by sandboxPack single chamber vacuum furnace into, the time is from entering stove to pouring as (25～30) min; Adopt alumina crucibleRemelted alloy cast, casting equipment adopts vaccum sensitive stove.
Described in the present embodiment, high-temperature fusant is processed the process of eliminating K441 alloy fire check, molding stepSuddenly, pattern-making material adopts the U.S. to produce F28-44B moulding wax material, 73～77 DEG C of molding die mould temperature, castingPressure 0.20～0.35MPa, mold clamping force 6-8MPa, dwell time 40～60s.
Described in the present embodiment, high-temperature fusant is processed the process of eliminating K441 alloy fire check, and technique is fixedPosition step, locating comprises the determining of location, ceramic core and ceramic shell of core and profile mouldPosition; The wherein location of core and profile mould, adopts core blade 1 main location, cope print 2, lower core3, the principle of exhaust side window mouth 4 auxiliary positioning; The location of ceramic core and ceramic shell, employing typeCope print 2 and the shell of core are directly located, and under core, the paraffin wax white of core print 3, core exhaust limit brush 5 is doneFor free end.
K441 alloy is carried out to 1700 DEG C of high-temperature fusant processing, and the time is 5min, and performance is as table 4.
From table 4, alloy after the high-temperature fusant of different temperatures is processed, its room temperature, 950 DEG CTensile property all has raising in various degree, mechanical properties with the alloy phase ratio without melt treatmentImprove (175～225) MPa, the hot strength of 950 DEG C improves (100～110) MPa, and plasticity is equalHave raising in various degree, temperature-room type plasticity improves 3～4 times, maintains regime values creep rupture lifeLevel on the upper side, reaches three times of 18 hours creep rupture lives of 980 DEG C/83MPa of technical conditions.
Claims (1)
1. high-temperature fusant is processed a process of eliminating K441 alloy fire check, it is characterized in that:The chemical composition percentage of K441 alloy consists of:
Main auxiliary material are:
Core material: porzite powder;
Mould material: F28-44B moulding wax material;
Shell: 100#, 80#, 60# schmigel and 24# gangue
Binding agent: Ludox or ethyl silicate hydrolyzate
The process that high-temperature fusant is processed elimination K441 alloy fire check includes following steps and complies withInferior execution: core preparation process, locating step, molding step, shell step processed, cast are located in advanceReason step, cast and alloy high-temp melt treatment step;
Wherein, described cast and alloy high-temp melt treatment step, for sending peak power fusing, are become civilizedAfter refining temperature is risen to 1600～1750 DEG C, high-temperature fusant processing time 5～7min; Pouring temperature1480～1500 DEG C, the duration of pouring 3～5S; Pour into a mould latter 5 minutes vacuum breakers, sandbox is taken out cooling, 8Shake out shelling after hour;
Described cast pre-treatment step, pouring type is that pattern of fever cast is back-up sand cast, back-up sand granularityFor 24# gangue, require without dust; Vanning and the preheating of shell divide following steps:
1. shell enter first to use before stove heating insulation quilt at the end face of large jam plate together with cross gate, use200 × 100 × 20mm insulation quilt is wrapped, then binds with the iron wire of Φ 0.3～0.5mm;
2. first pack the back-up sand of 20～30mm in the bottom of sandbox into, repave the guarantor that thickness is 20mmTemperature felt; When shell packs sandbox into, first obturage and water rim of a cup and carry out again back-up sand with double-layer aluminum-foil, require before shellRear left and right mold thickness is even, and back-up sand is 30～40mm apart from the height of cast gate rim of a cup, takes away aluminium foil, lidUpper cast gate bowl cover, packs holding furnace power transmission lightly into;
Shell preheat temperature: 980 DEG C～1010 DEG C, be greater than 4 hours; Shell enters stove cast: by sandboxPack single chamber vacuum furnace into, the time is 25～30min from entering stove to pouring; Adopt alumina crucible remeltingAlloy cast, casting equipment adopts vaccum sensitive stove;
Described molding step is that pattern-making material adopts the U.S. to produce F28-44B moulding wax material, molding die mould73～77 DEG C of temperature, casting pressure 0.20～0.35MPa, mold clamping force 6-8MPa, the dwell time 40～
60s；
Described locating step is location, the ceramic mould that locating comprises core and profile mouldThe location of core and ceramic shell; The wherein location of core and profile mould, adopts core blade (1) main fixedPosition, the principle of cope print (2), lower core print (3), exhaust side window mouth (4) auxiliary positioning; Ceramic core withThe location of ceramic shell, adopts the cope print (2) of core and shell directly to locate, core print under core (3),The paraffin wax white of core exhaust limit brush (5) is as free end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710081735.1A CN106342094B (en) | 2007-07-13 | 2007-07-13 | A kind of high-temperature fusant is processed the process of eliminating K441 alloy fire check |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710081735.1A CN106342094B (en) | 2007-07-13 | 2007-07-13 | A kind of high-temperature fusant is processed the process of eliminating K441 alloy fire check |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106342094B true CN106342094B (en) | 2011-03-30 |
Family
ID=57797865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710081735.1A Expired - Fee Related CN106342094B (en) | 2007-07-13 | 2007-07-13 | A kind of high-temperature fusant is processed the process of eliminating K441 alloy fire check |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106342094B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107803465A (en) * | 2017-12-06 | 2018-03-16 | 安徽应流航源动力科技有限公司 | A kind of single crystal casting break-resistance bottom plate and preparation method thereof |
| CN111451445A (en) * | 2020-04-30 | 2020-07-28 | 中国航发成都发动机有限公司 | Investment casting method of high-temperature alloy casting |
-
2007
- 2007-07-13 CN CN200710081735.1A patent/CN106342094B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107803465A (en) * | 2017-12-06 | 2018-03-16 | 安徽应流航源动力科技有限公司 | A kind of single crystal casting break-resistance bottom plate and preparation method thereof |
| CN107803465B (en) * | 2017-12-06 | 2024-01-05 | 安徽应流航源动力科技有限公司 | Anti-cracking bottom plate for single crystal castings and preparation method thereof |
| CN111451445A (en) * | 2020-04-30 | 2020-07-28 | 中国航发成都发动机有限公司 | Investment casting method of high-temperature alloy casting |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20110094705A1 (en) | Methods for centrifugally casting highly reactive titanium metals | |
| CN108913952B (en) | High-temperature alloy and preparation method thereof | |
| CN106555076A (en) | A kind of resistance to 650 DEG C of high-temperature titanium alloy materials and preparation method thereof | |
| CN100588733C (en) | A kind of magnesium alloy for semi-solid forming and preparation method of semi-solid blank thereof | |
| CN101871067B (en) | Strontium modified silicon-containing high-strength magnesium alloy and preparation method thereof | |
| CN102019353A (en) | Precision casting molding method for complex thin-walled member | |
| CN102876998B (en) | Heat-resistant steel, turbocharger conjoined casing and preparation method of turbocharger conjoined casing | |
| CN103540812B (en) | A kind of Aluminum alloy material for engine cylinder cover and preparation method thereof | |
| CN102181744A (en) | High-performance beryllium-copper alloy and preparation method thereof | |
| CN109628787B (en) | Preparation method of Al-Cu-Mg-Si alloy plate reinforced by in-situ micro-nano particles in melt | |
| CN109604539B (en) | Ultrasonic vibration device suitable for treating cast iron melt | |
| Birru et al. | Effects of grain refinement and residual elements on hot tearing of A713 aluminium cast alloy | |
| CN103691910A (en) | Preparation method of aluminum-coated magnesium composite plate material | |
| Campbell | Sixty years of casting research | |
| CN101733393A (en) | Method for preparing high-performance aluminum alloy accurate die casting | |
| CN105420524B (en) | A kind of method that use K417G and DZ417G reverts prepare K424 cast superalloys | |
| CN100497688C (en) | Method of preparing TiC-FeNiCrMo composite material using aluminothermic-fast solidification technology | |
| CN107236913B (en) | A kind of zirconium-base amorphous alloy and preparation method thereof | |
| CN106342094B (en) | A kind of high-temperature fusant is processed the process of eliminating K441 alloy fire check | |
| JP4396576B2 (en) | Piston manufacturing method | |
| CN105039816A (en) | Low-cost, high-strength and heat-resisting magnesium alloy and preparation method thereof | |
| CN105220016A (en) | A kind ofly prepare the material of boat and prepare the processing method of boat with this material | |
| CN107815560A (en) | A kind of high quality alloy aluminium bar preparation technology | |
| CN101899609B (en) | Heat-resistant spherical graphite cast iron for steel ladle slide gate mechanism slide and processing method thereof | |
| CN109735757A (en) | A kind of sintered hard alloy boat contact material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR03 | Grant of secret patent right | ||
| DC01 | Secret patent status has been lifted | ||
| DCSP | Declassification of secret patent | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 110043 Dong TA street, Dadong District, Shenyang, Liaoning Province, No. 6 Patentee after: AECC SHENYANG LIMING AERO-ENGINE Co.,Ltd. Address before: 110043 Dong TA street, Dadong District, Shenyang, Liaoning Province, No. 6 Patentee before: Aecc Shenyang Liming Aero Engine Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110330 |